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25-01-2026 16:08

Malcolm  Greaves Malcolm Greaves

This Geoglossum had spores mostly 70-80 (87) with

27-01-2026 11:43

Malcolm  Greaves Malcolm Greaves

Is anyone with experience of DNA testing able to t

26-01-2026 11:49

Margot en Geert Vullings

We found this possible anamorph on a dead Cytisus

25-01-2026 23:23

Tomaz Vucko Tomaz Vucko

Hello! I found this species that resembles Delitsc

18-01-2026 12:24

Josep Torres Josep Torres

Hello.An anamorph located on the surface of a thin

23-01-2026 21:50

Cameron DK

I am looking for this please publication. is anyon

10-01-2026 20:00

Tom Schrier

Hi all,We found picnidia on Protoparmeliopsis mur

21-01-2026 19:55

Bohan Jia

Hi,  Could this be Nemania aureolutea? Or did I

21-01-2026 16:32

Gernot Friebes

Hi,I need your help with some black dots on a lich

21-01-2026 16:48

Gernot Friebes

Hi,after my last unknown hyphomycete on this subst

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Asco found on Fraxinus twig
Robin Isaksson, 01-01-2022 21:17
Robin IsakssonHi!


asco react orange- brown in koh10%

Spores around 6,5-8,5x 3,5-4 um, asci 8 spored, picture spores in water.

Asci topp no rection in lugols. 

anyone knows it? 

found in Sweden

Best regrads
  • message #71269
  • message #71269
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  • message #71269
  • message #71269
Björn Sothmann, 01-01-2022 21:22
Björn Sothmann
Re : Asco found on Fraxinus twig
Hi Robin,

by chance I just came across a post on Twitter 5 minutes ago where Mark Powell showed Unguiculariopsis thallophila on Lecanora hybocarpa. This seems to match your collection rather well, in particular since your brown ascomycete seems to be on some lichen, so you might compare with it.

Björn
Robin Isaksson, 01-01-2022 21:26
Robin Isaksson
Re : Asco found on Fraxinus twig
Hi,

Yes of course, I have seen it several times before. Was completely in other thoughts.

thanks so much.

Best regards

Hans-Otto Baral, 01-01-2022 22:13
Hans-Otto Baral
Re : Asco found on Fraxinus twig
I agree. There is a wide range in the ascospore width in the literature: 6-10 x 2-4 µm.  What I studied (3 samples with drawings) has spores around 6-8 x 2.3-2.7 µm. Your spores look distinctly broader than mine, though of the same length.

More details about the hairs would helpful, they have usually narrowed and curved apices.